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Title: Electrode assembly for use in a solid polymer electrolyte fuel cell

Abstract

A gas reaction fuel cell may be provided with a solid polymer electrolyte membrane. Porous gas diffusion electrodes are formed of carbon particles supporting a catalyst which is effective to enhance the gas reactions. The carbon particles define interstitial spaces exposing the catalyst on a large surface area of the carbon particles. A proton-conducting material, such as a perfluorocarbon copolymer or ruthenium dioxide, contacts the surface areas of the carbon particles adjacent the interstitial spaces. The proton-conducting material enables protons produced by the gas reactions adjacent the supported catalyst to have a conductive path with the electrolyte membrane. The carbon particles provide a conductive path for electrons. A suitable electrode may be formed by dispersing a solution containing a proton-conducting material over the surface of the electrode in a manner effective to coat carbon surfaces adjacent the interstitial spaces without impeding gas flow into the interstitial spaces.

Inventors:
Publication Date:
Research Org.:
Los Alamos National Lab., NM (USA)
OSTI Identifier:
6098485
Patent Number(s):
4876115
Application Number:
07/163,672, ON: DE88000862
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; ELECTRODES; FUEL CELLS; CARBON; CATALYST SUPPORTS; CATALYSTS; MEMBRANES; PARTICLES; POLYMERS; POROUS MATERIALS; SOLID ELECTROLYTES; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTROLYTES; ELEMENTS; MATERIALS; NONMETALS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Raistrick, I D. Electrode assembly for use in a solid polymer electrolyte fuel cell. United States: N. p., 1987. Web.
Raistrick, I D. Electrode assembly for use in a solid polymer electrolyte fuel cell. United States.
Raistrick, I D. Fri . "Electrode assembly for use in a solid polymer electrolyte fuel cell". United States. https://www.osti.gov/servlets/purl/6098485.
@article{osti_6098485,
title = {Electrode assembly for use in a solid polymer electrolyte fuel cell},
author = {Raistrick, I D},
abstractNote = {A gas reaction fuel cell may be provided with a solid polymer electrolyte membrane. Porous gas diffusion electrodes are formed of carbon particles supporting a catalyst which is effective to enhance the gas reactions. The carbon particles define interstitial spaces exposing the catalyst on a large surface area of the carbon particles. A proton-conducting material, such as a perfluorocarbon copolymer or ruthenium dioxide, contacts the surface areas of the carbon particles adjacent the interstitial spaces. The proton-conducting material enables protons produced by the gas reactions adjacent the supported catalyst to have a conductive path with the electrolyte membrane. The carbon particles provide a conductive path for electrons. A suitable electrode may be formed by dispersing a solution containing a proton-conducting material over the surface of the electrode in a manner effective to coat carbon surfaces adjacent the interstitial spaces without impeding gas flow into the interstitial spaces.},
doi = {},
url = {https://www.osti.gov/biblio/6098485}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

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